Dinamička obrada audio signala

undergraduate thesis

• Title (english): Dynamic processing of audio signals
• Author: Elena Maganić
• Mentor: Ivan Đurek (mentor)
• Committee member: Ivan Đurek (predsjednik povjerenstva)
• Committee member: Kristian Jambrošić (član povjerenstva)
• Committee member: Marko Horvat (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Dinamička obrada audio signala se bazira na regulaciji pojačana ulaznog signala. Regulacija dinamike izuzetno je važna te je njome postignuto poboljšanje kvalitete signala u audiotehnici. Osnovni uređaji kojima se to postiže su limiter, noise gate uređaj, kompresor i ekspander. Limiter i noise gate su suprotni uređaji. Limiter ograničava da pojačanje nakon thresholda bude konstantno, dok noise gate ograničava pojačanje prije thresholda. Objašnjeni su najvažniji parametri svih uređaja te njihova regulacija. U programu Matlab realiziran je algoritam za kompresor s mogućnosti namještanja thresholda i omjera kompresije.

Abstract (english)

Dynamic processing of audio signals is based on regulation of amplified input signal. Regulation of dynamics is extremely important, moreover it improved signal quality in audiotehnics. It is acomplished by these fundamental devices: limiter, noise gate device, compressor and expander. Limiter and noise gate device are contradictory to each other. Limiter restricts amplification of signal so after threshold it would be constant, while noise gate device restricts amplification before threshold. The most important parameters of these devices are explained and so is their regulation. Algorithm for compressor with the ability of adjusting threshold and ratio of compression is written in Matlab.

• Keywords: dinamika; dinamička obrada signala; limiter; noise gate uređaj; kompresor; ekspander; threshold
• Keywords (english): dynamics; dynamic processing of signal; limiter; noise gate; compressor; expander; threshold
• Language: croatian
• URN:NBN: urn:nbn:hr:168:450766
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 22:27:18